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Date:      Wed, 29 Feb 2012 17:18:03 +0000 (UTC)
From:      jb <jb.1234abcd@gmail.com>
To:        freebsd-questions@freebsd.org
Subject:   hard disk behavior
Message-ID:  <loom.20120229T180349-340@post.gmane.org>

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Hi,
I very often hear this metallic (mechanical) clicking from my hard disk when
it is active. I experience this behavior under FreeBSD only (not other OSs).
Is there any way to figure out what it means ?
Any other tools, except SMART below, to try ? What to look for ?
 
# /usr/local/sbin/smartctl -a /dev/ada0
smartctl 5.42 2011-10-20 r3458 [FreeBSD 9.0-RELEASE i386] (local build)
Copyright (C) 2002-11 by Bruce Allen, http://smartmontools.sourceforge.net

=== START OF INFORMATION SECTION ===
Model Family:     Western Digital Scorpio Blue Serial ATA
Device Model:     WDC WD1600BEVS-08RST2
Serial Number:    WD-WXC308897633
LU WWN Device Id: 5 0014ee 2abfdb88c
Firmware Version: 11.01G11
User Capacity:    160,041,885,696 bytes [160 GB]
Sector Size:      512 bytes logical/physical
Device is:        In smartctl database [for details use: -P show]
ATA Version is:   7
ATA Standard is:  Exact ATA specification draft version not indicated
Local Time is:    Wed Feb 29 18:01:06 2012 CET
SMART support is: Available - device has SMART capability.
SMART support is: Enabled

=== START OF READ SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED

General SMART Values:
Offline data collection status:  (0x00)	Offline data collection activity
					was never started.
					Auto Offline Data Collection: Disabled.
Self-test execution status:      (   0)	The previous self-test routine completed
					without error or no self-test has ever 
					been run.
Total time to complete Offline 
data collection: 		( 6780) seconds.
Offline data collection
capabilities: 			 (0x7b) SMART execute Offline immediate.
					Auto Offline data collection on/off support.
					Suspend Offline collection upon new
					command.
					Offline surface scan supported.
					Self-test supported.
					Conveyance Self-test supported.
					Selective Self-test supported.
SMART capabilities:            (0x0003)	Saves SMART data before entering
					power-saving mode.
					Supports SMART auto save timer.
Error logging capability:        (0x01)	Error logging supported.
					General Purpose Logging supported.
Short self-test routine 
recommended polling time: 	 (   2) minutes.
Extended self-test routine
recommended polling time: 	 (  87) minutes.
Conveyance self-test routine
recommended polling time: 	 (   6) minutes.
SCT capabilities: 	       (0x103f)	SCT Status supported.
					SCT Error Recovery Control supported.
					SCT Feature Control supported.
					SCT Data Table supported.

SMART Attributes Data Structure revision number: 16
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME          FLAG     VALUE WORST THRESH TYPE      UPDATED 
WHEN_FAILED RAW_VALUE
  1 Raw_Read_Error_Rate     0x000f   200   200   051    Pre-fail  Always       -
      0
  3 Spin_Up_Time            0x0003   188   188   021    Pre-fail  Always       -
      1558
  4 Start_Stop_Count        0x0032   100   100   000    Old_age   Always       -
      972
  5 Reallocated_Sector_Ct   0x0033   200   200   140    Pre-fail  Always       -
      0
  7 Seek_Error_Rate         0x000f   200   200   051    Pre-fail  Always       -
      0
  9 Power_On_Hours          0x0032   087   087   000    Old_age   Always       -
      10148
 10 Spin_Retry_Count        0x0013   100   100   051    Pre-fail  Always       -
      0
 11 Calibration_Retry_Count 0x0012   100   100   051    Old_age   Always       -
      0
 12 Power_Cycle_Count       0x0032   100   100   000    Old_age   Always       -
      773
192 Power-Off_Retract_Count 0x0032   200   200   000    Old_age   Always       -
      29
193 Load_Cycle_Count        0x0032   001   001   000    Old_age   Always       -
      779337
194 Temperature_Celsius     0x0022   115   104   000    Old_age   Always       -
      32
196 Reallocated_Event_Count 0x0032   200   200   000    Old_age   Always       -
      0
197 Current_Pending_Sector  0x0012   200   200   000    Old_age   Always       -
      0
198 Offline_Uncorrectable   0x0010   100   253   000    Old_age   Offline      -
      0
199 UDMA_CRC_Error_Count    0x003e   200   200   000    Old_age   Always       -
      0
200 Multi_Zone_Error_Rate   0x0009   100   253   051    Pre-fail  Offline      -
      0

SMART Error Log Version: 1
No Errors Logged

SMART Self-test log structure revision number 1
Num  Test_Description    Status                  Remaining  LifeTime(hours) 
LBA_of_first_error
# 1  Short offline       Completed without error       00%      8212         -

SMART Selective self-test log data structure revision number 1
 SPAN  MIN_LBA  MAX_LBA  CURRENT_TEST_STATUS
    1        0        0  Not_testing
    2        0        0  Not_testing
    3        0        0  Not_testing
    4        0        0  Not_testing
    5        0        0  Not_testing
Selective self-test flags (0x0):
  After scanning selected spans, do NOT read-scan remainder of disk.
If Selective self-test is pending on power-up, resume after 0 minute delay.

[root@localhost /home/jb]# 
# /usr/local/sbin/smartctl -t short /dev/ada0smartctl 5.42 2011-10-20 r3458
[FreeBSD 9.0-RELEASE i386] (local build)
Copyright (C) 2002-11 by Bruce Allen, http://smartmontools.sourceforge.net

=== START OF OFFLINE IMMEDIATE AND SELF-TEST SECTION ===
Sending command: "Execute SMART Short self-test routine immediately in off-line
mode".
Drive command "Execute SMART Short self-test routine immediately in off-line
mode" successful.
Testing has begun.
Please wait 2 minutes for test to complete.
Test will complete after Wed Feb 29 18:12:35 2012

Use smartctl -X to abort test.
[root@localhost /home/jb]# /usr/local/sbin/smartctl -H /dev/ada0
smartctl 5.42 2011-10-20 r3458 [FreeBSD 9.0-RELEASE i386] (local build)
Copyright (C) 2002-11 by Bruce Allen, http://smartmontools.sourceforge.net

=== START OF READ SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED

[root@localhost /home/jb]# 
jb





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